Becoming curious about the girl he saw the other day, Kaito Yashio hears from Junna Daitoku about various sightings of the girl. As Akiho Senomiya and Subaru Hidaka deal with an interview for the Robo-One tournament, Kaito and Junna go to the beach, where they encounter the cadaver of a beached whale.
Hearing that Junna has retired from the karate club, Kaito suggests she pay a visit to the Robotics Club. Later that night, Kaito hears the strange voice again, leading him to an abandoned room in school, where he finally encounters the girl through his PokeCon. This AI, named Airi, reveals herself to be an Iru-O app that had attempted to contact Kaito over the past 8 years. She then shows Kaito a hidden file, containing a log by one Ko Kimijima, predicting gigantic solar flares would occur on certain years.
As Kaito ponders how many of those predictions turned out to be accurate, Mizuka has a strange reaction where she hears Kaito mention Kimijima's name.